Plaque forming cells in the spleen, lymph and blood.
D000818:Animals; D000906:Antibodies / Q000032:analysis; D000917:Antibody Formation; D001769:Blood / Q000276:immunology*; D004912:Erythrocytes; D006460:Hemolysin Proteins / Q000032:analysis; D007114:Immunization; D008196:Lymph / Q000276:immunology*; D011817:Rabbits; D012756:Sheep; D013154:Spleen / Q000276:immunology*
D000906:Antibodies; D006460:Hemolysin Proteins